BirdAnalyst
BBS Route · Minnesota · BCR 23

Millville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 49 survey years, still active.

106Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
49Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2019Span
5Observers

Bird Species Found on Minnesota Millville

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Millville route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Cliff SwallowHirundinidae227201943×1979
Red-winged BlackbirdIcteridae672019+31%1970
Barn SwallowHirundinidae30201912×1970
Rock PigeonColumbidae252019-8%1970
American RobinTurdidae232019+11%1970
Turkey VultureCathartidae202019+159%1976
Bank SwallowHirundinidae182019-88%1970
American GoldfinchFringillidae172019+51%1970
House SparrowPasseridae172019-90%1972
American CrowCorvidae112019-55%1970
Song SparrowPasserellidae112019-47%1970
Northern House WrenTroglodytidae112019-56%1971
Baltimore OrioleIcteridae92019+60%1970
Common YellowthroatParulidae92019-49%1970
Rose-breasted GrosbeakCardinalidae82019-19%1970
Chipping SparrowPasserellidae82019+56%1972
European StarlingSturnidae72019-86%1970
Northern Rough-winged SwallowHirundinidae72018+208%1970
Red-eyed VireoVireonidae62019-65%1972
Mourning DoveColumbidae52019-77%1970
Blue JayCorvidae52019-25%1970
Gray CatbirdMimidae52019-32%1970
Brown-headed CowbirdIcteridae52019-77%1971
Great Crested FlycatcherTyrannidae52019-40%1972
Red-bellied WoodpeckerPicidae52019+44%1973
Northern CardinalCardinalidae42019-46%1970
Indigo BuntingCardinalidae42019-13%1970
Yellow WarblerParulidae42019+86%1971
American KestrelFalconidae42017+150%1973
American RedstartParulidae42019+100%1971
Warbling VireoVireonidae42019+0%1973
Double-crested CormorantPhalacrocoracidae41997n/an/a
Brewer's BlackbirdIcteridae42019-85%2006
Great EgretArdeidae31976+200%1967
KilldeerCharadriidae32019-17%1970
Eastern KingbirdTyrannidae32019+100%1970
Common GrackleIcteridae32019-90%1970
Brown ThrasherMimidae32019-13%1970
Eastern Wood-PeweeTyrannidae32016-61%1972
White-breasted NuthatchSittidae32019-47%1972

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.